Canon Line Offset Noise

Started Oct 20, 2009 | Discussions thread
xxD Contributing Member • Posts: 726
Re: OK for black frames, what about "real" images

John Sheehy wrote:

xxD wrote:

Alright. I can see what you've done and it makes sense and seems to be a straightforward data manipulation.

But that's a black frame and you get to make a lot of assumptions that make the correction easy because it's a black frame.

What complications are added to your algorithm if it's an photo with unpredictable subject and background detail?

None, if the bottom 100 rows don't receive light, or receive it evenly.

Is there a way for the algorithm to automatically determine if that's the case?

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